Reinforcing band for containers



July 5, 1937- c. M. MaccHEsNEY ET A1. 2,086,040

REINFORCING BAND FOR CONTAINERS Filed Dec. 31, 1934 Patented July 6, 1937 UNITED STATES REINFORCING BAND FOB CONTAINERS Chester M. MacChesney, Chicago, and Allen B. Wilson, Evanston; Ill., mignon to Acme Steel Company. Chicago, lli., a corporation of Illinois Application December 3l, 1934, Serial No. 759.839

2 Claims.

'I'his invention relates to improvements in containers and reinforcing'` rims or bands therefor and the purpose of the invention is to provide an improved construction in which a reinforcing metallic rim is held securely in place around the top edge of the outer wall of the container, thereby protecting the top edge of the wall. 'I'he invention relates more particularly to containers oi the collapsible type in which an annular collapsibie' non-metallic wall, formed of paper, nbreboard, or the like, is adapted to be expanded within a metallic reinforcing rim. Annuiar collapsible walls of this type are commonly shipped in bundles in the collapsed condition and are then unfolded and expanded at the place of use and assembled in connection with the rim and other parts of the container preparatory to filling the container with the commodity to be shipped therein. lIlhe principal object of the present invention is to provide an improved container of this type comprising an annular metallic rim which may be detachably interlocked with the top edge o f the annular wall and which is adapted to protect the edge of the annular wall during the use of the container. Still another object of the invention is to provide an improved container comprising an annular collapsible wall having a series of projections adjacent its upper edge, formed preferably of metallic members which are v attached thereto at intervals, in combination with an annular metallic rim having a flange adapted to interlock with said projections and having an inwardly turned flange adapted to hold said annular wall in its expanded condition, wherein the projections carried thereby interlock with the ange on the rim. Another object of the invention is to provide an improved method of forming a container according to which an annular collapsible non-metallic wall is provided adjacent its upper end with a series of metallic attaching devices forming outwardly extending projections and then placing over the end of the expanded annular wall a complete annular metallic rim having an inwardly and downwardly turned upper fiange adapted to extend on the inside of the annular wall to hold said annular woll in its expanded condition wherein said projections interlock with an inwardly directed ange formed on the lower edge of said rim. Other objects relate to various details of construction and features of the improved method which will appear more fully hereinafter.

The nature of the invention will be understood from the following specification taken with the accompanying drawing, in which one embodi- (ci. zzo-5.7)

ment and two modifications of certain features of the invention are illustrated.

In the drawing: v

Figure 1 is a side elevation of a typical container carrying our improved reinforcing band, a. 5 portion thereof being cut away to expose one of the attaching devices carried by the container body;

Fig; 2 is a top plan view of the container shown in Fig. l;

Figs. 3 and 4 are sections along the lines 3-3 and 4-4 in Figs. 1 and 3, respectively, showing the relation of cur improved band to the container body and the attaching devices carried thereby; 15

Fig. 5 is a' sectional view, corresponding to that shown in Fig. 3, but illustrating a reverse positioning of the attaching devices;

Fig. 6 is a view similar to Fig. 5 but showing a modification of the attachment; l 20 Fig. 7 is a vertical section through a container wall and another form of attachment; and

Fig. 8 is a view similar to Fig. 7 showing still another form of attachment.

Referring to the drawing, the numeral i0 des- 25 ignates a typical container of the collapsible type which comprises an annular cylindrical wall Il that may be formed from paper or a. similar material and which is initially cut as a sheet for subsequent bending to form the body and its overlap- 30 ping end edges are secured together by glue or other fastening means. After4 being thus formed, these annular walls are customarily collapsed and folded flat for'shipment and storage andare subsequently expanded for assembly at the-point of 35 use. The numeral I3 designates any conven'- tional bottom for the container, while the numeral Il indicates our improved reinforcing band or rim.

This band or rim is preferably formed from 40 a flat metal strip I5 which is cut to an appropriate length.. dependent upon the circumference of the container with which it is to be employed, vand the ends thereof are secured by any conventional means. such as by spot weld- 45 ing. It will. be understood that the band or rim may have Vother cross-sectional configurations than the flat formation shown, since the essential features of the invention as regards this band are directed to other aspects thereof. 50

I'he upper edge of the band I5 is curled inwardly to provide a continuous flange I5'l having a generally semi-circular section. 'I'he lower edge of the band is turned inwardly andup- `wardly to provide a ange |55 adapted to inter- 55 lock with parts carried by the annular cylindrical wall' Il.

In order to assist inretaining the band or rim I4 on the wall Il. a plurality of spaced attaching devices II are mounted in the wall of the annular wall Il at adistancebelow theupperedge 'thereof detennined by the width of the band.

'Ihese attaching devic are preferably in the form of staples or metallic stitches and, in the form shown in Pigs. 3 and 4, each staple comprises an intermediate portion il', which lies in close contact with the outer surface of the container body Il, and arms il* which extend inwardly through the annular wall. 'Ihese ends are bent towards each other or clinched to form portionsli, and their extremities Il are forced outwardly again into the body wall.

' The portions It* of the staples provide a series oi protuberances externally oi' the body over which the flange Il of the rim is hooked. In positioning the band on the container, the band is forced downwardly until the upper flange Il* completely shields the upper edge of the annular wall I i and with the inner edge of this flange extending downwardly for a short distance internally of the container. As the upper flange Ill reaches this position. the lower flange Il is snapped over the projecting staple portions Il, as permitted by the resiliency of the annular wall Il, and the flange lib then engages the lower edges of the staple portions IO to secure the band in position. thus adequately stiii'ening` the upper end of the container, and also providing a metallic reinforcement and protection for the otherwise fragile upper end of the nonmetallic container wall il. It will be observed that the curved top ange il* of the rim holds the annular wall ii against inward collapse so that the staples il are maintained in interlocking engagement with the flange Il".

It is within the scope of the present invention to reverse the positions of the staples. as shown in Fig. 5, which shows a staple Il of the same form as the staple il illustrated in Fig. 3, except that the body portion Il'L is located internally of the container wall il and the arms i'lb project through the wail and are turned inwardly 'or clinched to provide curved projecting portions i1 which act in the same manner as the staple portions II of the form rst described.

A further modification of the staple is shown in Fig. 6, wherein the intermediate portion I l* of the staple I9, externally of the container wall 20, is provided with a slight hump Il in order to increase the width of the protuberance outwardly of the container wall. The arms I2 project through the container wall and are clinched as shown at ltd.

It has been found in practice that the form of construction shown in Fig. 'I has many advantages because of the decreased tendency to tear the material of the lannular wall under the is directed in a substantially vertical direction. 'Ihis staple has arms 22* and 22 which penetrate the annular wall 22 of the container and which are inwardly turnedor clinched onlthe inside of the container wall as shown at-22. The lower arm 22 is provided witha curved or irregular portion 22 -which holds the back wall the advantagesoi' the form illustrated in Fig. 7.

except that this stapleor fastener is applied from the inside of the annular wall. lIn this.

modincation, a staple 24 has a back wall 24* which extends in an upright position, being united at its ends with the arm portions 24|' and 24 which penetrate the annular lnon-metallic wall 2l of the container. The inner extremity of the arm 24h is curved outwardly away from the annular wall as shown at 244 and the extremity of the lower arm 24 isreversely bent and clinched against the annular wall as shown at 24. arm 24" of the staple forms a projection which is adapted to interlock with the lower inturned ange of the annular metallic rim as in the forms of the invention heretofore described.

Although certain forms of the invention have been shown and described by way of illustration. it will be understood that it may be constructed in still other embodiments coming within the scope of the appended claims.

We claim:

i. The combination of a collapsible container body having a plurality of separate circumferentially spaced metallic stitches. located therearound and slightly below the upper edge there- The out-turned portion 24 of the upper of. and a metallic reinforcing band having an inwardly and downwardly turned flange directly engaging the upper edge of said container body to cover and protect the same and a second ilange engaging the stitches, the cooperation oi the flanges with the body and stitches retaining the band in position.

2. The combination with an annular non metallic collapsible container wall having an annular series of circumferentially spaced metallic stitches forming outwardly extending projections adjacent one end of the container, oi a metal rim surrounding said wall and having two annular inwardly extending flanges formed along its edges, one of said flanges being located adjacent said projections and the other flange extending on the inside of said annular wall to hold said wall expanded and thereby maintain said projections in positions wherein they interlock with said first-named ange to maintain said rim on said annular wall.

CHESTER. M. MACCHESNEY.

ALLEN B. WILSON. 

